Predicting Annual Precipitation.
Not what you're looking for?
The annual precipitation amounts in a certain mountain range are normally distributed with a mean of 88 inches, and a standard deviation of 10 inches. What is the likelihood that the mean annual precipitation during 25 randomly picked years will be less than 90.8 inches?
Purchase this Solution
Solution Summary
This solution shows step-by-step calculations to determine the likelihood that the mean annual precipitation during 25 years is less than 90.8 inches.
Solution Preview
The mean of 25 random years is less than 90.8 is equal to saying tha the sum of 25 random years is less than 2270.
In other words, we have 25 normal distributions with mean = 88 and variance = 100. We ...
Purchase this Solution
Free BrainMass Quizzes
Measures of Central Tendency
This quiz evaluates the students understanding of the measures of central tendency seen in statistics. This quiz is specifically designed to incorporate the measures of central tendency as they relate to psychological research.
Measures of Central Tendency
Tests knowledge of the three main measures of central tendency, including some simple calculation questions.
Terms and Definitions for Statistics
This quiz covers basic terms and definitions of statistics.
Know Your Statistical Concepts
Each question is a choice-summary multiple choice question that presents you with a statistical concept and then 4 numbered statements. You must decide which (if any) of the numbered statements is/are true as they relate to the statistical concept.